package org.itstack.demo.netty.server;

import com.alibaba.fastjson.JSON;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;
import io.netty.channel.socket.SocketChannel;
import org.itstack.demo.netty.util.MsgUtil;

import java.text.SimpleDateFormat;
import java.util.Date;

public class MyServerHandler extends ChannelInboundHandlerAdapter {

    @Override
    public void channelActive(ChannelHandlerContext ctx) throws Exception {
        SocketChannel socketChannel = (SocketChannel) ctx.channel();
        System.out.println("连接报告开始");
        System.out.println("连接报告信息：有一个客户端链接到本地服务端。channelId：" + socketChannel.id());
        System.out.println("链接报告IP：" + socketChannel.localAddress().getHostString());
        System.out.println("链接报告Port：" + socketChannel.localAddress().getPort());
        System.out.println("连接报告完毕");

        String str = "通知客户端链接建立成功" + new Date() + " " + socketChannel.localAddress().getHostString() + "\r\n";
        ctx.writeAndFlush(MsgUtil.buildMsg(socketChannel.id().toString(), str));

    }

    @Override
    public void channelInactive(ChannelHandlerContext ctx) throws Exception {
        System.out.println("客户端断开链接：" + ctx.channel().localAddress().toString());
    }

    @Override
    public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
        System.out.println(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date()) + "接收到消息类型：" + msg.getClass());
        System.out.println(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date()) + "接收到消息内容" + JSON.toJSONString(msg));

    }

    @Override
    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
        ctx.close();
        System.out.println("异常信息：\r\n" + cause.getMessage());
    }
}
